Put the call packetfilter service method in a module because it was repeated in the scheduler and the sg handler
Added some spaces after commas
Some code cleanup in the packetfilter service
Renamed PacketfilterAgent and NetfilterAgent to PacketfilterService and NetfilterService respectively to match the factory method name
Added the packetfilter_service file that I forgot to commit to git
Changed the l2 anti-spoofing rules from blacklist to whitelist